IBM Dock I manual Problems Action

Title: C74AMST CreationDate: 06/23/93 17:09:07

Problems		Action
Blank screen with one		When you are using an external display with a display adapter, a
beep.		blank screen is normal.
	Note	When you return to operating mode from suspend mode, one beep
If you are using an		sounds and the suspend LED on the computer blinks and a
external display, go to		power-on password is required. The cursor does not appear as you
“External Display		type the power-on password, but it is entered.
(CRT) Problems” on		Verify that:
page 6-8.
		1. Both the brightness and contrast controls on the computer are
		correctly adjusted.
		2. The Display device parameter in the ThinkPad Features menu is
		correctly specified. Refer to the information supplied with your
		computer.
		If the above items are correct and the screen remains blank, have the
		system unit serviced.
Blank screen with a		This beep can be a message from the warning function of the Dock I.
continuous beep, or two		See “Warning Function” on page 1-12. for the cause of the beep.
or more beeps.		If the problem still occurs, have the system unit serviced.
Only the cursor “_”		If you are using an external display with a display adapter, the
appears.		cursor “_” is normal.
		Otherwise, have the system unit serviced.
Screen is unreadable or		Have the system unit serviced.
distorted.
Wrong characters appear		Have the system unit serviced.
on the screen.

Chapter 6. Solving Problems 6-13